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<FONT color="green">001</FONT>    package com.google.code.wicket.auth.component.value.resolver;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import java.util.Collection;<a name="line.3"></a>
<FONT color="green">004</FONT>    <a name="line.4"></a>
<FONT color="green">005</FONT>    /**<a name="line.5"></a>
<FONT color="green">006</FONT>     * Determines what values are required for a given component class. Usage:<a name="line.6"></a>
<FONT color="green">007</FONT>     * Implement either {@link #getSingleValue(Class)} or {@link #getValues(Class)}<a name="line.7"></a>
<FONT color="green">008</FONT>     * and let {@link #useSingleValues()} determine which one you are using. (Use<a name="line.8"></a>
<FONT color="green">009</FONT>     * {@link SingleValueResolver} and {@link MultiValueResolver} as adapters so<a name="line.9"></a>
<FONT color="green">010</FONT>     * that you only have to implement one method).<a name="line.10"></a>
<FONT color="green">011</FONT>     * <a name="line.11"></a>
<FONT color="green">012</FONT>     * @param &lt;T&gt;<a name="line.12"></a>
<FONT color="green">013</FONT>     *            the value type, will usually be a string or an enum representing a<a name="line.13"></a>
<FONT color="green">014</FONT>     *            role or privilege.<a name="line.14"></a>
<FONT color="green">015</FONT>     */<a name="line.15"></a>
<FONT color="green">016</FONT>    public interface ValueResolver&lt;T&gt; {<a name="line.16"></a>
<FONT color="green">017</FONT>    <a name="line.17"></a>
<FONT color="green">018</FONT>        /**<a name="line.18"></a>
<FONT color="green">019</FONT>         * Get a single required value.<a name="line.19"></a>
<FONT color="green">020</FONT>         * <a name="line.20"></a>
<FONT color="green">021</FONT>         * @param componentClass<a name="line.21"></a>
<FONT color="green">022</FONT>         * @return<a name="line.22"></a>
<FONT color="green">023</FONT>         */<a name="line.23"></a>
<FONT color="green">024</FONT>        T getSingleValue(Class&lt;?&gt; componentClass);<a name="line.24"></a>
<FONT color="green">025</FONT>    <a name="line.25"></a>
<FONT color="green">026</FONT>        /**<a name="line.26"></a>
<FONT color="green">027</FONT>         * Get all required values.<a name="line.27"></a>
<FONT color="green">028</FONT>         * <a name="line.28"></a>
<FONT color="green">029</FONT>         * @param componentClass<a name="line.29"></a>
<FONT color="green">030</FONT>         * @return<a name="line.30"></a>
<FONT color="green">031</FONT>         */<a name="line.31"></a>
<FONT color="green">032</FONT>        Collection&lt;T&gt; getValues(Class&lt;?&gt; componentClass);<a name="line.32"></a>
<FONT color="green">033</FONT>    <a name="line.33"></a>
<FONT color="green">034</FONT>        /**<a name="line.34"></a>
<FONT color="green">035</FONT>         * If this returns true, clients must call {@link #getSingleValue(Class)},<a name="line.35"></a>
<FONT color="green">036</FONT>         * otherwise {@link #getValues(Class)}.<a name="line.36"></a>
<FONT color="green">037</FONT>         * <a name="line.37"></a>
<FONT color="green">038</FONT>         * @return<a name="line.38"></a>
<FONT color="green">039</FONT>         */<a name="line.39"></a>
<FONT color="green">040</FONT>        boolean useSingleValues();<a name="line.40"></a>
<FONT color="green">041</FONT>    <a name="line.41"></a>
<FONT color="green">042</FONT>    }<a name="line.42"></a>




























































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